Installing Raspbian

Required steps before running iRedMail.sh

Note that iRedMail system requirements require 1 Gb of RAM while the Pi has 512 Mb RAM. Still, it works with swap enabled and one component (ClamAV) removed after installation. I used zram instead of swap to disk.

apt-get install modprobe && modprobe ipv6 to make sure Dovecot package installation works. (still, iRedMail is not configured for ipv6 by default). Add ipv6 to /etc/modules if you want it to persist after reboot.